| Chaffin vs Law | 7–11 | 38.89% |
| Chaffin vs Jin | 8–10 | 44.44% |
| Chaffin vs Kazuya | 11–6 | 64.71% |
| Chaffin vs Reina | 12–3 | 80.00% |
| Chaffin vs Asuka | 6–8 | 42.86% |
| Chaffin vs Victor | 8–3 | 72.73% |
| Chaffin vs King | 5–3 | 62.50% |
| Chaffin vs Hwoarang | 4–4 | 50.00% |
| Chaffin vs Eddy | 3–5 | 37.50% |
| Chaffin vs Heihachi | 6–2 | 75.00% |
| Chaffin vs Clive | 6–1 | 85.71% |
| Chaffin vs Steve | 6–0 | 100.00% |
| Chaffin vs Alisa | 6–0 | 100.00% |
| Chaffin vs Yoshimitsu | 5–0 | 100.00% |
| Chaffin vs Jack-8 | 5–0 | 100.00% |
| Chaffin vs Jun | 1–4 | 20.00% |
| Chaffin vs Anna | 4–1 | 80.00% |
| Chaffin vs Bryan | 4–0 | 100.00% |
| Chaffin vs Lili | 0–4 | 0.00% |
| Chaffin vs Dragunov | 1–3 | 25.00% |
| Chaffin vs Paul | 1–2 | 33.33% |
| Chaffin vs Devil Jin | 3–0 | 100.00% |
| Chaffin vs Feng | 1–2 | 33.33% |
| Chaffin vs Shaheen | 2–1 | 66.67% |
| Chaffin vs Azucena | 3–0 | 100.00% |
| Chaffin vs Xiaoyu | 2–0 | 100.00% |
| Chaffin vs Claudio | 0–2 | 0.00% |
| Chaffin vs Kuma | 2–0 | 100.00% |
| Chaffin vs Lidia | 2–0 | 100.00% |
| Chaffin vs Nina | 0–1 | 0.00% |
| Chaffin vs Lee | 0–1 | 0.00% |
| Chaffin vs Raven | 1–0 | 100.00% |
Limitations
This data is often requested to give insight into which characters you have more trouble with than others, but it is not particularly helpful for that. The main issue is that it is heavily skewed by how strong the opponents you play are.
For example, this data suggests my worst matchup is clearly vs Reina, but that's just because most of those games are vs Yagami.
There is a way to account for this being worked on. The central idea is to assign each matchup a rating vs you which adjusts based on the result, much like the regular rating but also based on the rating of each player. With this, it would give a better summary of how well you perform vs each character.
In the meantime, this page is here to present the data as requested.